You may have a mental picture of the north Pole a place far, far to the north, safely placed under an equally safe planted the flag as a historical adventurer has left.
So, it is not necessarily.
although the vote well when it comes to the geographic north pole, which is a man-made point where the longitudinal lines on a globe meet, is the magnetic north pole out on a perpetual walk.The forgotten polar adventurer who was the first person on the north Pole the Newspaper Plus
It was the british naval officer and polar explorer James Clark Ross first located the magnetic north pole - the point kompassnåla pointing towards - in 1831.
When Norway's very own Roald Amundsen went in search of the same poland in 1904, it was not there. During the 73 years that had passed since Ross' discovery, had the magnetic pole moved 50 kilometers.
And so it remains. The magnetic north pole is constantly wandering. After that first detected that the moved has the "raised" far. First moved it with a average speed of ten kilometers in a year. Now it is expected around 55 kilometres in the course of 12 months.A fraction
this in itself is no new discovery.
Already in 1965, scientists model the World Magnetic Model (WMM), which calculates how the earth's magnetic field is changing.
the Model is normally updated every five years - the last in 2015. That responsibility has ended up with scientists at the United states federal agency for sea and atmosfæreforskning (NOAA) and the British Geological Survey.In the beginning was flying SAS over the north Pole with the polar bears-rifle and four-bed-sleeping bag in the cockpit
In the years, however, scientists made a unique exception from the rule, when they saw that nordpolens migration toward Siberia in Russia has increased significantly in speed, something that can have a big impact on the navigation systems used by the military, commercial flights and other moves in the vicinity of the north Pole.
Even though the navigation systems in several smartphones and car-GPSer use map based on the WMM models, there is little reason to worry about for most people.
There is talk of a correction on a fraction of one degree. Most sensors are only accurate to within a few degrees initially, " says geophysicist Ciaran Beggan, British Geological Survey, to The Guardian.
most of The WMM-users will, in other words, hardly notice the difference between the old and the new WMM model. The most dramatic impact takes first place when one moves in the Arctic.
- It affects mainly people who is dependent on very accurate measurements, " says Beggan.Was nearly killed by a polar bear, lost two men, and went bankrupt in the Newspaper Plus getting larger and larger
Already in 2002, the daily newspaper Dagbladet that the north Pole is on the way to leave Canada on its way to Russia. It has WMM model already shown in a long time, but the change in speed the last few years is so dramatic that the researchers now need to scrutinize the previous estimate.
Error only gets larger and larger all the time, said Arnaud Chulliat, a research scientist at the earth's magnetic field at the University of Colorado, to the journal Nature before the new model was presented.
the Blame is attributed to the magnetic field the earth is surrounded by.
the Researchers believe that the field occurs because the outer layers jordkjernen of iron surrounded by a metallic liquid that spin quickly around the nucleus. Thus arises a dynamoeffekt that creates the magnetic field.Under this flag is 594 oil fields and 350 gullkilder
the Problem, as we still face today, is that we do not have any good method to predict how the field will change, says Andrew Jackson, a geophysicist at the ETH Zurich, to the New York Times.- don't Know why
Researchers have yet to find a good answer on why the south magnetic pole driver ever faster away.
- The south magnetic pole driver ever faster in the direction of Siberia, but why it happens, we do not know, " says Alv Egeland, professor emeritus at the University of Oslo, to Aftenposten.
- The electric currents have changed, and therefore moves the magnetic pole itself. The move has increased enormously. Why the currents are changing, we do not know, " he explains further.
Scientists also believe that Nordpolens hiking can lead to dramatic consequences for the northern Lights, which forms a circle around the magnetic pole.
If the magnetic north Pole moves to Siberia can the northern Lights be weaker in Northern Norway, while areas further south in Europe might be more northern lights.the northern Lights may disappear Dagbladet Plus